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Toxocarpus incarnatus (Apocynaceae, Secamonoideae), a new species from Thailand

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A taxonomic revision of the genus Callilepis (Asteraceae) in South Africa

PAUL P.J. HERMAN
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Systematic significance of pollen morphology in rare endemic taxa of Astragalus L. (Fabaceae)

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The Rudgea hostmanniana complex (Rubiaceae) in the Guiana Shield region

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The taxonomy and nomenclature of Kalanchoe ×vadensis [K. blossfeldiana × K. marmorata var. somaliensis] (Crassulaceae subfam. Kalanchooideae), an early nothospecies produced in The Netherlands in the 1950s

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Describing Passiflora coloranigra, a striking new species of Passiflora supersection Laurifoliae (Passifloraceae) from Panama

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Ternstroemia guerrerensis (Pentaphylacaceae), a new endangered cloud forest tree from Guerrero, Mexico

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Three Brazilian species of Begonia (Begoniaceae) from the state of Rio de Janeiro, Brazil

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Clarification of morphology and distribution of Thalictrum fortunei (Ranunculaceae) from China, with reduction of T. fortunei var. bulbiliferum to its synonymy

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Kalanchoe ×robertsonii [K. longiflora × K. rotundifolia] (Crassulaceae subfam. Kalanchooideae), a new, small-growing nothospecies from South Africa

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